Misc. UI Changes For Consistency with HN

[johnwarden]

• Highlight "hntop" in white on the hntop page (the original HN does the same for all pages but the front page)
• Show "Discuss" instead of "0 Comments" when there are no comments
• "N minutes ago" should link to the story page
• Username should link to user page
• Show domain after story title
• Mobile/smalls viewports:
  • slightly larger right margin (just a few pixels it appears to me)
  • wrap after a |
• Do we want the same margins around the page content (grey background) as the original
• when you hover over a relative time (e.g. 2 days ago) on HN, it shows the iso timestamp.
• usernames for new users appear in green.

[fdietze]

@johnwarden what exactly do you mean with:

• "slightly larger right margin (just a few pixels it appears to me)"
• "wrap after a |"

[fdietze]

• I don't think we need margins to be exactly the same as on HN. We have our own page layout which just looks similar.
• New users appearing in green are not essential for launching on HN